385475520 has 56 divisors (see below), whose sum is σ = 1223887824. Its totient is φ = 102793216.

The previous prime is 385475513. The next prime is 385475539. The reversal of 385475520 is 25574583.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199809 + ... + 201728.

Almost surely, 2^385475520 is an apocalyptic number.

385475520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

385475520 is an abundant number, since it is smaller than the sum of its proper divisors (838412304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385475520 is a wasteful number, since it uses less digits than its factorization.

385475520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401557 (or 401547 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 39.

The square root of 385475520 is about 19633.5305026885. The cubic root of 385475520 is about 727.7780187030.

The spelling of 385475520 in words is "three hundred eighty-five million, four hundred seventy-five thousand, five hundred twenty".